jQuery版本(非CoffeeScript)工作jsFiddle
例如,我的contenteditablediv中有一个文本,如下所示:
<div id = "board">
<div>#include<iostream.h></div>
<div></div>
<div>int main(){</div>
<div>
clrscr
<span id="openParen">(</span>
<span id="closeParen">)</span>
;
</div>
<div>return 0;</div>
<div>}</div>
</div>
如果我看到一些关键字,它将被包装在span
中。
<div id = "board">
<div><span class="fragment">#include<iostream.h></span></div>
<div></div>
<div>int <span class="fragment">main</span>(){</div>
<div>
<span class="fragment">
clrscr
<span id="openParen">(</span>
<span id="closeParen">)</span>
;
</span>
</div>
<div>return 0;</div>
<div>}</div>
</div>
我已经完成了对#include和main等关键字的包装,但我无法使用以下代码包装clrscr()(来自https://stackoverflow.com/users/2684660/funkwurm):
$('#board').children().each(function(index, child) {
var text = $(child).html();
text = text.replace(/(#include(s*<.*>)?)/g, '<span class="frag">$1</span>');
text = text.replace(/(main)/g, '<span class="frag">$1</span>');
text = text.replace(/(clrscr)/gi, '<span class="frag">$1</span>');
$(child).html(text);
});
$('#board').children().each(function(index, child) {
var text = $(child).html();
text = text.replace(/(#include(s*<.*>)?)/gi, '<span>$1</span>');
text = text.replace(/(main(.*))/gi, '<span>$1</span>');
$(child).html(text);
});
事实证明,你不能像我在dcro的答案下建议的那样使用text()
。
要匹配#include、#include,main()和main(..一些参数..),您可以遍历原始div的子级,并使用正则表达式对每一行进行匹配和替换:
text = child.html();
text = text.replace(/(#include(s*<.*>)?)/gi, '<span>$1</span>');
text = text.replace(/(main(.*))/gi, '<span>$1</span>');
child.html(text);
查看JSFiddle演示。您可能需要根据自己的用例调整正则表达式。